Home / 209,623.71-289,272.96-114,128.49

Finding the Fourth Proportional to 209,623.71, 289,272.96 and 114,128.49

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Solution

The fourth proportional to 209,623.71, 289,272.96 and 114,128.49 is: 157,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,623.71 : 289,272.96 = 114,128.49 : x
  2. Step 2: Convert to fraction form
    209,623.71/289,272.96 = 114,128.49/x
  3. Step 3: Cross multiply
    209,623.71x = 289,272.96 × 114,128.49
  4. Step 4: Simplify right side
    209,623.71x = 33,014,286,122.63
  5. Step 5: Solve for x
    x = 33,014,286,122.63/209,623.71
  6. Step 6: Final answer
    x = 157,493.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.